- Introduced a new `DatasetToDatasetGroup` struct to represent the relationship between datasets and dataset groups, including fields for timestamps and optional deletion.
- Updated the database schema to include `updated_at` and `deleted_at` fields for the `datasets_to_dataset_groups` table, enhancing data tracking capabilities.
- Refactored the routing in `mod.rs` to include a nested router for assets, improving the organization of dataset group routes.
dal